IEEE C802.16m-08/399r1 Project IEEE 802.16 Broadband Wireless Access Working Group <http://ieee802.org/16> Title DL Precoding matrix signaling for MU-MIMO Date Submitted 2008-05-23 Source(s) Li shaohua, Peter Wang, Qi Xin, Kang Jianfeng Nokia Siemens Networks shaohua.li@nsn.com Zexian Li Nokia zexian.li@nokia.com Ryohei KIMURA,Takaaki KISHIGAMI, Isamu YOSHII, Katsuhiko HIRAMATSU Matsushita Electric (Panasonic) kishigami.takaaki@jp.panasonic.com yoshii.isamu@jp.panasonic.com {zyuantao; zhouhua; jie.zhang}@cn.fujitsu.com} nakatsugawa@jp.fujitsu.com Yuantao Zhang , Hua Zhou, Jie Zhang, Keiichi Nakatsugawa (Fujitsu) Re: IEEE 802.16m-08/016r1 (“Call for contributions on Project 802.16m SDD”) Target topic: “Downlink MIMO schemes” Abstract This contribution provides precoding matrix signaling for MU-MIMO as relevant to downlink MIMO schemes Purpose For discussion and approval by TGM Notice Release Patent Policy This document does not represent the agreed views of the IEEE 802.16 Working Group or any of its subgroups. It represents only the views of the participants listed in the “Source(s)” field above. It is offered as a basis for discussion. It is not binding on the contributor(s), who reserve(s) the right to add, amend or withdraw material contained herein. The contributor grants a free, irrevocable license to the IEEE to incorporate material contained in this contribution, and any modifications thereof, in the creation of an IEEE Standards publication; to copyright in the IEEE’s name any IEEE Standards publication even though it may include portions of this contribution; and at the IEEE’s sole discretion to permit others to reproduce in whole or in part the resulting IEEE Standards publication. The contributor also acknowledges and accepts that this contribution may be made public by IEEE 802.16. The contributor is familiar with the IEEE-SA Patent Policy and Procedures: <http://standards.ieee.org/guides/bylaws/sect6-7.html#6> and <http://standards.ieee.org/guides/opman/sect6.html#6.3>. Further information is located at <http://standards.ieee.org/board/pat/pat-material.html> and <http://standards.ieee.org/board/pat>. DL Precoding matrix signaling for MU-MIMO Li Shaohua, Peter Wang, Qi Xin, Kang Jianfeng Nokia Siemens Corporation 1 IEEE C802.16m-08/399r1 Zexian Li Nokia Ryohei KIMURA,Takaaki KISHIGAMI, Isamu YOSHII, Katsuhiko HIRAMATSU Matsushita Electric (Panasonic) Yuantao Zhang , Hua Zhou, Jie Zhang, Keiichi Nakatsugawa Fujitsu Proposed Text for SDD Insert the following text into Physical Layer sub-clause (i.e. Chapter x in SDD): ------------------------------- Text Start --------------------------------------------------- 11. x Advanced multiple antenna technique 11.x.1 SU-MIMO technique 11.x.1.1 Open loop 11.x.1.1 Closed loop 11.x.2 MU-MIMO technique 11.x.2.1 codebook based precoding 11.x.2.1.1 UL feedback design 11.x.2.1.2 DL precoding schemes 11.x.2.1.3 DL signaling scheme In the downlink MU-MIMO, the precoding matrix shall be transmitted with the explicit signaling and/or implicit signaling using limit signaling overhead. When explicit signaling is employed, precoding matrix should be informed to the corresponding MSs in a multicast manner. 2